Shuttle binder for looms



Oct. 24, 1950 J. T. KENNEDY 2,527,065

SHUTTLE BINDER FOR LOOMS Filed May 14, 1949 FIG .I 22

INVENTOR JOHN T. KENNEDY ATTORNEY Patented Oct. 24, 1950 SHUTTLE BINDER FoR-LooMs JohnT. Kennedy, Worcester, -Mass., assignor to Crompton & Knowles Loom Worlrs, Wprces ter, Mass, a corporation of Massachusetts Application May 14, 1949, Serial No. 93,316

9 Claims. (01. 139-135) This invention relatesto shuttle binders for looms and it is the general object of theinvention to simplify the mountingof the, binder by eliminating the usual binder spring and binder pivot.

Shuttle binders in looms ordinarilyswing about a pivot carried by the lay and are moved into the path of the shuttle by a binder spring which is mounted either on the lay or a gang of shuttle boxes, When the shuttle enters the box it moves the binder about the pivot against the action of the-spring to operate the protector finger. The pivoted endof-the binderordinarily is not able t move inadirection transverse of the shuttle box except inso-ca-lled floatingbinderswhich require; some form ofslot in the binder to receive a pin on the lay.

It is an. important object of the present invention to mount the binder on ablock of soft elastic material,- such as rubber, the normal tendency of which is to hold the.binderin shuttlev checking position, thereby eliminating the usual binder spring and binder pivot. I

It isa furtherobject of the invention to arrange the block of elastic material in such manner that it can yield to permit transverse motion of theaoljaeent end of the shuttle binder, thereby attaining the efiect of a fioatina'bingler but with-- out use of the customary pin and-slot connection.

It is a stillfurther object; of the invention to line the shuttle engaging face of thebinder with a strip of flexible wear resisting material, such as leather, secured to elongated hollow rubber cushions'so constructed that-upon initial entry of the shuttleinto the. box a relatively small degree of resistanceto shuttle motiqnwilhbeeffected, but as the shuttle continuesto move into the boxthe degree of resistance will increase; This result may be accomplished by having the cushionsprovided with a collapsible wall which can yield under light pressures and be moved against another part of the cushion which requires higher pressures to effect further compressionor yieldmg. As the shuttle continues to moveintoythe shuttle box a third resisting forcev is set upby deforming the aforesaid elastic block, and'asthe.

shuttle nears the end of its 'motiona fourth resisting force is set up by compressionof the elastic block as the shuttle causes endwis e motion of the binder. The shuttle is therefore checked by a series of resisting forces which are Fig; Lisa frontelevation of a drop box endof a loom lay and adjacent parts illustrating two.

shuttle. boxes, equipped with binders made according to the present invention.

Fig..,2 is aplanview looking in the direction.

ofia'ri'owsl, Fig. 1.

Fig. 3 is an enlarged vertical sectionvon line 3-i3, Fig. 2 showing theblockof elastic material:

manner of operation of one feature ,of-thelineventiona r Referring2 moreparticularly to Figs. 1. and 2; the loom lay L is of usual construction and is supported on lay swords. one of whichis indicated-at Ill. The layhas a shuttle race H along which the active shuttle travels, during loom operation. A gang G of two shuttle-boxes one overthe other is mounted on a box, lifter rod lz operatedjn usual manner so that either of the J two shuttles SI or S2 can be moved to active picking position with respect to the shuttle races The gang G includes top, intermediate, and

bottom plates l3, l4 and 15-, respectively, anddefine the two cells or shuttle boxes 16; and H of the gang G. These plates, have, their outer or leftends, as viewed in Figs. 1 and 2, secured, to a guide tongue l8, slidable vertically in a box guidelfiu secured asat 20 to the lay. Similarly, the inner rearendsgof the box plates are secured thereto the .usual binder stop 25.

- The matterthus far described "maybe of usual construction and of itself forms no part of the.

present invention.

The gang G is providedwith two shuttle binders designated atBl and B2 provided, respectively, for the top and bottom cells liiand ll of=-the 1 shuttle gang. Since these binders are alikeonly one of them willbedescribed in detaihnamely, the binder B l for the top shuttle box. 1

The bindermay be made of woodand has a reduced innerend .30 for engagementigwith the protectorafingerwn; A tapered part; 31; of the. binder is inclined rearwardly and outwardly or to the left, Fig. 2, toa wider part 32 which may have and 34, respeci parallel front and back walls 33 tively.

h 5 t-3 fi d h l'l w u pe n lower cushions 35 and 36, respectively, which may be made of soft elastic rubber and formed in cross section as shown in Fig. 4. Each cushion has a semi-circular collapsible wall 31 integral with a base 38 and bridging an open space 39 extending lengthwise of the cushion. Each base 38 may be secured to the rear binder wall 34 in any approved manner, as by cementing. A flexible strip of w''ar resisting material; such as leather facing 40, is secured to the walls 31, as by cement indicated at 4|. The leather strip 40 faces inwardly with respect to the shuttle box and is the part of the binder which has direct engagement with a shuttle entering the shuttle box.

An angle iron 45 is secured to the left forward end of the binder Bl, see Fig. 2, by screws 46 and has a forwardly extending section 41. A U-shaped metal holder 50 having a front plate and two rearwardly extending side arms 52 and 53 is secured to a part of the gang G by a screw 54. The arms 52 and 53 extend vertically between and may engage the plates I3 and I4 to be positioned thereby.

A body or block 60 of soft elastic material, such as rubber, has the left vertical Wall 6| thereof bonded to a holder plate 63 which is secured to arm 52 by a screw 64. The block 60 is therefore fixed at its left side, Figs. 2 and 3, to the shuttle box. The right side of block 50 is bonded to the angle iron 45 and moves with the binder. The holder plate 63 at the rear end thereof is bent to the right as at 65 to form stop t limit rearward movement of the left end of the binder.

'Under normal conditions with the shuttle out of boxcell IS the block 60 of rubber or the like will be under sufficient stress to hold the binder BI rearwardly in the shuttle box with the reduced end 30 thereof against the box mouth 24. As the shuttle SI enters the shuttle box it will move the right end of the binder forwardly against the stop or guard to move the protector finger forwardly. As the shuttle presses against the leather facing 40 the walls or arches 31 of the cushions will be collapsed against their associated bases 38. During this collapsing of the walls 31 the leather facing of the binder will offer a relatively small resistance to the shuttle motion, but as soon as the arches 31 are in direct engagement with the bases 38 a considerably higher degree of resistance will be offered to motion of the shuttle. As the shuttle continues to move into the box the outer end of the binder will be moved forwardly, or transversely of the shuttle box, thereby deforming the block 60 by setting up a shear stress in it and moving it from the full line to the dotted line position shown in Fig. 5. This deformation or change in shape of the block 60 still further increases the resistance which the binder offers to motion of the shuttle. The latter is therefore checked by progressively increasing forces as it approaches its fully boxed position.

Another checking feature of the binder grows outof'the fact that due to its frictional contact with the shuttle it has a slight end motion during the latter part of the boxing of the shuttle. As

shown in Fig.2 the left end of binder BI is separated from plate 63 by a space 66 which permits the binder to move to the left to compress block 50. The resistance which the rubber block offers to being compressed is a fourth factor in checking the shuttle. This factor does not ordinarily come into action however until the shuttle is almost at the end of its motion.

When the shuttle is picked out of the box the block 60 returns to its normal condition and moves the inner end of the binder rearwardly against the box mouth plate 24.

From the foregoing it will be seen that the invention provides a shuttle binder held normall in shuttle checking position by a body of soft elastic material, such as rubber, which eliminates the usual binder spring and pivot. Also, the hollow rubber cushions on the binder have walls or arches 31 which collapse in the first stage of shuttle checking and are forced against the bases 38, thereby increasing the checking force. As the shuttle continues to move into the shuttle box the block 60 is subjected to deformation in shear by forward motion of the outer end of the binder, thereby providing additional checking force. A fourth factor in checking the shuttle is provided by compression of block 60 as the binder due to end motion enters space 66. The stop 65 may not be necessary in all instances, and means of mounting holding plate 63 other than the U-shaped member 50 may be employed.

Having thus described the invention it will be seen that changes and modifications of the foregoing specific disclosure may be made without departing from the spirit and scope of the invention.

What is claimed as new is:

1. In a loom lay having a shuttle box thereon, a shuttle binder forming part of the shuttle box moved bodily transversely of the shuttle box by a shuttle entering the shuttle box, and a mounting for one end of the binder comprising a body of soft resilient material having part thereof fixed with respect to the lay and having another part thereof fixed with respect to said end of the binder and constituting the sole support for said end of the binder and tending due to the resilience thereof to hold the binder in the path of a shuttle entering the shuttle box and acting due to the resilience thereof to resist said bodily transverse motion of the binder.

2. In a loom lay having a protector finger and a shuttle box thereon, a shuttle binder moved angularly by a shuttle entering the shuttle box to operate said finger and thereafter moved bodily transversely f the shuttle box by the shuttle, and a mounting for the end of the binder remote from said finger comprising a body of soft resilient material part of which is fixed with respect to the shuttle box and another part of which is fixed with respect to said end of the binder remote from said finger and constituting the sole support for said end of the binder, said mounting due to the resilience thereof normally holding the binder in the path of a shuttle entering the shuttle box and yielding to permit said .angular movement of the binder and thereafter being deformed by and resisting said bodily transverse movement of the binder.

3. In a loom lay havin a shuttle box thereon, a shuttle binder forming part of the shuttle box moved bodily transversely of the shuttle box by a shuttle entering the shuttle box, a mass of soft resilient material interposed between the lay and the outer end of the binder, resilient cushions extending along the binder on the side of the latter adjacent to the shuttle, and a facing secured to said cushions for direct engagement with the shuttle, a shuttle when entering the shuttle box compressing said cushions and thereafter transmitting a forcethrough the compressed cushions against said mass of material to deform the latter, said mass of material due to deformation thereof resisting said transverse motion of the binder.

4. In a loom lay having a shuttle box thereon, a shuttle binder forming part of the shuttle box, a mass of soft resilient material operatively interposed between the outer end of the binder and the lay tending due to the resilience thereof and connection thereof with the lay and binder to hold the latter in the path of the shuttle, cushion means extending along the binder on that side thereof facing inwardly with respect to the shuttle box, said cushion means having collapsible wall means, said cushion wall means being made of soft resilient material, and a facing for direct engagement with the shuttle secured to said collapsible wall means, a shuttle entering the shuttle box acting through said fac-- ing to collapse said wall means and thereafter subject said cushion means to compression and subsequently transmit a force through said wall and cushion means to deform said mass of re silient material, the latter due to the deformation thereof resisting transverse motion of the binder with respect to the shuttle box.

5. In a loom lay having a shuttle box thereon, a shuttle binder forming part of the shuttle box movable transversely of the latter by a shuttle entering the shuttle box, a body of soft resilient material having one part thereof fixed with respect to the lay and having another part thereof fixed with respect to the binder, said body of resilient material normally holding the binder in shuttle engaging position with respect to the shuttle box, cushion means extending along that part of the binder facing inwardly with respect to the shuttle box including base means secured to the binder and collapsible wall means integral with said base, and flexible wear resisting facing secured to said wall means in position for direct engagement with the shuttle, a shuttle entering the shuttle box acting through said facing to collapse said wall means against said base means and subjecting the latter to compression, the shuttle as it continues to move into the box exerting a force through said wall and base means to deform said mass of resilient material, the latter due to deformation thereof resisting said transverse motion of the binder with respect to the shuttle box.

6. In a loom lay having a shuttle box thereon, a binder forming part of the shuttle box, mounting means for the outer end of the binder comprising a body of soft resilient material one end of which is fixed with respect to the lay and the other end of which is fixed with respect to said outer end of the binder, said body normally holding the binder in shuttle engaging position and being compressible in the direction in which the shuttle enters the shuttle box and being subjected to a shear stress when that part thereof secured to the binder moves transversely of the lay, cushion means extending alon that part of the binder facing inwardly with respect to the shuttle box, and a flexible facing on said cushion means for direct engagement with the shuttle, a shuttle entering the shuttle box compressing said cushion means and thereafter transmitting a force through said cushion means to move the binder transversely of the shuttle box and subject said body of resilient material to said shear 6 stress and subsequently due to frictional contact with said facing subjecting said body of resilient material to a compressive force.

7. In a loom lay having a shuttle box thereon,

a shuttle binder forming part of the shuttle box having an outer end movable transversely of the shuttle box by a binder entering the shuttle box, a body of soft resilient material having part thereof fixed with respect to the lay and having another part thereof fixed with respect to the outer end of the binder and normally holding the latter in position for engagement with a shuttle entering the shuttle box, said body of resilient material being subjected to a compressive stress when'the binder moves in the direction in which the shuttle enters the shuttle box and being subjected to shear stress when said outer end thereof is moved transversely of the shuttle box by a shuttle, cushion means extending along the binder having a base secured to the latter and formed with integral collapsible wall means, and a flexible wear resisting facing for direct engagement. with the shuttle secured to said Wall means, a shuttle when moving into the shuttle box successively collapsing said wall means, subjecting said base means to compression, subjecting said body of resilient material to said shear stress, and thereafter subjecting said body to said compressive stress.

8. In a loom lay having a shuttle box thereon, a shuttle binder forming part of the shuttle box, an angle iron secured to said binder adjacent one end thereof, a carrier fixed with respect to the lay, and a body of soft elastic material bonded to said angle iron and carrier and normally stressed to hold the binder in the path of the shuttle and yielding on itself as a shuttle enters the shuttle box and resisting movement of said end of the binder transversely of the shuttle box.

9. In a loom lay having a shuttle box thereon, a shuttle binder forming part of the shuttle box, an angle iron secured to the binder adjacent one end thereof and having a section extending transversely of the shuttle box, a carrier fixed with respect to the lay extending transversely of the shuttle box and spaced from said section in the direction of the length of the shuttle box, and a body of soft elastic rubber bonded to said section and to said carrier and normally stressed to hold the binder in the path of the shuttle entering the shuttle box, said body of rubber resisting movement of said end of the binder transversely of the shuttle box by a shuttle entering the shuttle box.

JOHN T. KENNEDY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,207,107 Payne July 9, 1940 2,234,597 Holmes Mar. 11, 1941 2,341,843 Hamilton Feb. 15, 1944 2,399,851 Brown May 7, 1946 2,417,295 Darwin Mar. 11, 1947 

